Intelligent cable trench environment monitoring device based on NB-IoT

Abstract

The utility model relates to the technical field of cable trench monitoring, and particularly discloses an intelligent cable trench environment monitoring device based on NB-IoT, which comprises a cable trench well and an environment monitoring device body, a well lid is placed at the upper end in the cable trench well, a mounting groove is formed in the upper end face of the well lid, and a protection plate is arranged in the mounting groove. A sealing mechanism is arranged between the protection plate and the mounting groove, a notch is formed in the lower end of the interior of the mounting groove in a penetrating mode, the well lid does not need to be opened, potential safety hazards caused by opening of the well lid can be avoided by dismounting and mounting the environment monitoring device body above the well lid, and meanwhile the situation that the well lid is damaged due to operation errors of replacement personnel can be avoided. And the environment monitoring device body is easy to replace through a quick release structure, the replacement speed of the environment monitoring device body is high, the replacement efficiency of the environment monitoring device body is effectively improved, and the cable trench environment monitoring device is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of cable trench monitoring technology, and specifically discloses an intelligent cable trench environmental monitoring device based on NB-IoT. Background Technology

[0002] Cable trenches are frequently used in domestic power transmission and distribution projects. These underground conduits are used for laying and replacing power cables. Because they are underground, faults are not easily detected in a timely manner, so monitoring is necessary. Highly dangerous cable faults often involve overheating and fire, making temperature measurement particularly important. Furthermore, methane deposits can easily accumulate inside cable trenches, potentially causing explosions in the event of an open flame. To protect the health and safety of workers, it is essential to monitor the ambient gases within the cable trenches.

[0003] Existing cable trench environmental monitoring devices are mostly fixed to the bottom of the cable trench cover with bolts. When the monitoring device malfunctions and needs to be replaced, the cable trench cover must be opened and multiple bolts must be removed one by one. This makes the disassembly and replacement process cumbersome. At the same time, the cable trench cover is open, which poses a safety hazard when replacing the monitoring device. Furthermore, during the disassembly and installation process, the monitoring device is prone to slipping and falling into the cable trench due to the error of the personnel, which can damage the monitoring device and make it inconvenient to use. Utility Model Content

[0004] This invention proposes an intelligent cable trench environmental monitoring device based on NB-IoT, which enables convenient and quick replacement of the monitoring device without opening the cable trench cover, avoiding safety hazards and preventing the monitoring device from being dropped and damaged due to personnel error during replacement, and is convenient to use.

[0005] This utility model is implemented as follows: an intelligent cable trench environmental monitoring device based on NB-IoT includes a cable trench well and an environmental monitoring device body. A well cover is placed at the upper end of the cable trench well. An installation groove is formed on the upper surface of the well cover. A protective plate is installed inside the installation groove. A sealing mechanism is provided between the protective plate and the installation groove. A notch is formed through the lower end of the installation groove. A support ring is fixedly connected to the lower end of the notch. Multiple evenly distributed grooves are formed on the upper surface of the support ring. The environmental monitoring device body is located inside the support ring. A limiting ring is fixedly connected to the outer wall of the environmental monitoring device body, abutting against the upper surface of the support ring. A through hole is formed through the upper surface of the limiting ring, each matching one of the multiple grooves. Multiple pins are rotatably connected to the lower surface of the protective plate, each passing through the multiple through holes and extending into the multiple grooves. A locking mechanism is provided between the multiple pins and the grooves.

[0006] As a preferred embodiment of the NB-IoT-based intelligent cable trench environmental monitoring device of this utility model, the locking mechanism includes two first passage slots symmetrically distributed on the inner wall of the groove, and a locking slot is provided at the lower end of the inner wall of the first passage slot. The lower end of the outer wall of the pin is fixedly connected to two symmetrically distributed locking blocks that respectively match the two first passage slots and the two locking slots.

[0007] As a preferred embodiment of the NB-IoT-based intelligent cable trench environmental monitoring device of this utility model, the sealing mechanism includes multiple annular grooves formed at the lower end of the mounting groove, and sealing gaskets are fixedly connected to the lower ends of the multiple annular grooves. The lower end face of the protective plate is fixedly connected to annular cylinders that match the multiple annular grooves respectively.

[0008] In a preferred embodiment of the NB-IoT-based intelligent cable trench environmental monitoring device of this utility model, a pressing plate is slidably connected to the outer wall of the pin, and a spring sleeved on the outer wall of the pin is fixedly connected between the upper end face of the pressing plate and the lower end face of the protective plate.

[0009] As a preferred embodiment of the NB-IoT-based intelligent cable trench environmental monitoring device of this utility model, the upper surface of the protective plate is provided with multiple evenly distributed storage slots, and multiple pins extend into the multiple storage slots respectively and are fixedly connected with torsion blocks.

[0010] As a preferred embodiment of the NB-IoT-based intelligent cable trench environmental monitoring device of this utility model, the inner wall of the through hole is provided with two second through slots that respectively match the two locking blocks.

[0011] In a preferred embodiment of the NB-IoT-based intelligent cable trench environmental monitoring device of this utility model, the protective plate is configured as a transparent structure.

[0012] The beneficial effects of this utility model are:

[0013] Without opening the manhole cover, the environmental monitoring device can be disassembled and installed from above, avoiding safety hazards caused by opening the manhole cover. It also prevents the device from slipping out of the user's hands and falling into the cable trench due to operator error, thus preventing damage. Furthermore, the quick-release structure simplifies the replacement process and increases efficiency, making the device more convenient to use. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front cross-sectional view of the present invention.

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram of part a;

[0018] Figure 4 This is a three-dimensional structural diagram of the protective plate of this utility model.

[0019] The markings in the diagram are: 1. Cable trench well; 2. Environmental monitoring device body; 3. Well cover; 4. Mounting groove; 5. Protective plate; 6. Notch; 7. Support ring; 8. Groove; 9. Limiting ring; 10. Through hole; 11. Pin; 12. First passage groove; 13. Slot; 14. Block; 15. Annular groove; 16. Sealing gasket; 17. Annular cylinder; 18. Extrusion plate; 19. Spring; 20. Storage groove; 21. Twist block; 22. Second passage groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0021] Please see Figure 1-4An NB-IoT-based intelligent cable trench environmental monitoring device includes a cable trench well 1 and an environmental monitoring device body 2. A well cover 3 is placed at the upper end of the cable trench well 1. The upper surface of the well cover 3 has an installation groove 4. A protective plate 5 is installed inside the installation groove 4. A sealing mechanism is provided between the protective plate 5 and the installation groove 4. A notch 6 is opened through the lower end of the installation groove 4. A support ring 7 is fixedly connected to the lower end of the notch 6. A plurality of evenly distributed grooves 8 are opened on the upper surface of the support ring 7. The environmental monitoring device body 2 is located inside the support ring 7. A limiting ring 9 is fixedly connected to the outer wall of the environmental monitoring device body 2 and abuts against the upper surface of the support ring 7. A through hole 10 is opened through the upper surface of the limiting ring 9, which matches the plurality of grooves 8. A plurality of pins 11 are rotatably connected to the lower surface of the protective plate 5, which pass through the plurality of through holes 10 and extend into the plurality of grooves 8. A locking mechanism is provided between the plurality of pins 11 and the grooves 8.

[0022] In this embodiment: When installing the environmental monitoring device body 2, the environmental monitoring device body 2 is placed inside the support ring 7, so that the lower end face of the limiting ring 9 abuts against the upper end face of the support ring 7, and the multiple through holes 10 are aligned with the multiple grooves 8. Then, the protective plate 5 is placed inside the mounting groove 4, and the protective plate 5 and the mounting groove 4 are sealed by the sealing mechanism. At the same time, multiple pins 11 pass through the multiple through holes 10 and enter the multiple grooves 8. Then, the multiple pins 11 are fixed in the multiple grooves 8 by the locking mechanism. Through the mutual cooperation between the multiple through holes 10 and the multiple pins 11, the horizontal position of the environmental monitoring device body 2 can be restricted. At the same time, multiple springs 19 push the multiple pressing plates 18 downward to abut against the upper end face of the limiting ring 9. Then, through the mutual cooperation between the multiple springs 19 and the multiple pressing plates 18, the vertical position of the environmental monitoring device body 2 is restricted, thereby completing the installation operation of the environmental monitoring device body 2. Since the protective plate 5 is set as a transparent structure, it is convenient to observe the environmental monitoring device body 2 through the protective plate 5.

[0023] When disassembling the environmental monitoring device body 2, the locking mechanism is released from the fixing state of multiple pins 11. Then, the protective plate 5 is taken out from the mounting groove 4. At the same time, the protective plate 5 drives multiple pins 11 to move out from multiple grooves 8 and multiple through holes 10. Then, the environmental monitoring device body 2 is taken out from the support ring 7, thus completing the disassembly operation of the environmental monitoring device body 2. This facilitates the quick replacement of the environmental monitoring device body 2 without opening the manhole cover 3, avoiding safety hazards and the possibility of the environmental monitoring device body 2 falling and breaking due to personnel error during replacement, making it convenient to use.

[0024] As a technical optimization of this utility model, the locking mechanism includes two first through grooves 12 that are symmetrically distributed on the inner wall of the groove 8. The lower end of the inner wall of the first through groove 12 is provided with a locking groove 13. The lower end of the outer wall of the pin 11 is fixedly connected to two symmetrically distributed locking blocks 14 that are respectively matched with the two first through grooves 12 and the two locking grooves 13.

[0025] In this embodiment: when the pin 11 enters the groove 8, the pin 11 drives the two locking blocks 14 into the two first through slots 12, and then the pin 11 is rotated, and the pin 11 drives the two locking blocks 14 to rotate into the two slots 13. Then, through the mutual cooperation between the two locking blocks 14 and the two slots 13, the pin 11 is fixed in the groove 8.

[0026] When the fixed state is released, rotate the pin 11 in the opposite direction. The pin 11 drives the two locking blocks 14 to rotate out of the two locking slots 13. Then pull the pin 11 upward, and the pin 11 drives the two locking blocks 14 to move out of the two first through slots 12.

[0027] As a technical optimization of this utility model, the sealing mechanism includes multiple annular grooves 15 opened at the lower end of the mounting groove 4, and sealing gaskets 16 are fixedly connected to the lower end of each of the multiple annular grooves 15. The lower end face of the protective plate 5 is fixedly connected to annular cylinders 17 that are respectively matched with the multiple annular grooves 15.

[0028] In this embodiment: after the protective plate 5 is placed in the mounting groove 4, multiple annular cylinders 17 enter multiple annular grooves 15 respectively and abut against multiple sealing gaskets 16. Then, through the mutual cooperation between the multiple annular cylinders 17, multiple annular grooves 15 and multiple sealing gaskets 16, the protective plate 5 and the mounting groove 4 are sealed.

[0029] As a technical optimization of this utility model, the outer wall of the pin 11 is slidably connected to a pressing plate 18, and a spring 19 sleeved on the outer wall of the pin 11 is fixedly connected between the upper end face of the pressing plate 18 and the lower end face of the protective plate 5.

[0030] In this embodiment, the vertical position of the environmental monitoring device body 2 can be restricted by the cooperation between the compression plate 18 and the spring 19.

[0031] As a technical optimization of this utility model, the upper surface of the protective plate 5 is provided with a plurality of evenly distributed storage slots 20, and a plurality of pins 11 extend into the interior of the plurality of storage slots 20 and are fixedly connected with twist blocks 21.

[0032] In this embodiment: the storage slot 20 can store the twist block 21, and the twist block 21 can drive the pin 11 to rotate.

[0033] As a technical optimization of this utility model, the inner wall of the through hole 10 is provided with two second through grooves 22 that respectively match the two locking blocks 14.

[0034] In this embodiment, the two second through slots 22 allow the two locking blocks 14 to pass through, facilitating the pin 11 to pass through the through hole 10.

[0035] As a technical optimization of this utility model, the protective plate 5 is set as a transparent structure.

[0036] In this embodiment, the protective plate 5 is made of a transparent structure, which makes it easy to observe the environmental monitoring device body 2 through the protective plate 5.

[0037] The working principle and usage process of this utility model are as follows: When installing the environmental monitoring device body 2, the environmental monitoring device body 2 is placed inside the support ring 7, so that the lower end face of the limiting ring 9 abuts against the upper end face of the support ring 7, and the multiple through holes 10 are aligned with the multiple grooves 8. Then, the protective plate 5 is placed into the mounting groove 4. After the protective plate 5 is placed in the mounting groove 4, the multiple annular cylinders 17 respectively enter the multiple annular grooves 15 and abut against the multiple sealing gaskets 16. Thus, through the mutual cooperation between the multiple annular cylinders 17, the multiple annular grooves 15 and the multiple sealing gaskets 16, the protective plate 5 and the mounting groove 4 are sealed. At the same time, the multiple pins 11 pass through the multiple through holes 10 and enter the multiple grooves 8. Then, the multiple pins 11 are fixed in the multiple grooves 8 by the locking mechanism. Specifically... When the pin 11 enters the groove 8, the pin 11 drives the two locking blocks 14 into the two first through slots 12. Then, the pin 11 is rotated by the torsion block 21. The pin 11 drives the two locking blocks 14 to rotate into the two slots 13. Then, through the mutual cooperation between the two locking blocks 14 and the two slots 13, the pin 11 is fixed in the groove 8. Through the mutual cooperation between the multiple through holes 10 and the multiple pins 11, the horizontal position of the environmental monitoring device body 2 can be limited. At the same time, the multiple springs 19 push the multiple pressing plates 18 to move downward to abut against the upper end face of the limiting ring 9. Then, through the mutual cooperation between the multiple springs 19 and the multiple pressing plates 18, the vertical position of the environmental monitoring device body 2 is limited, thereby completing the installation operation of the environmental monitoring device body 2.

[0038] When disassembling the environmental monitoring device body 2, the locking mechanism is released from the fixed state of multiple pins 11. Specifically, the pins 11 are rotated in the opposite direction, and the pins 11 drive the two locking blocks 14 to rotate out of the two locking slots 13. Then, the protective plate 5 is taken out of the mounting slot 4. At the same time, the protective plate 5 drives the multiple pins 11 to move out of the multiple grooves 8 and multiple through holes 10. Then, the environmental monitoring device body 2 is taken out of the support ring 7, thereby completing the disassembly operation of the environmental monitoring device body 2.

[0039] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A smart cable trench environmental monitoring device based on NB-IoT, comprising a cable trench well (1) and an environmental monitoring device body (2), characterized in that: A manhole cover (3) is placed at the upper end of the cable trench well (1). An installation groove (4) is provided on the upper surface of the manhole cover (3). A protective plate (5) is provided inside the installation groove (4). A sealing mechanism is provided between the protective plate (5) and the installation groove (4). A notch (6) is provided through the lower end of the installation groove (4). A support ring (7) is fixedly connected to the lower end of the notch (6). A plurality of evenly distributed grooves (8) are provided on the upper surface of the support ring (7). The environmental monitoring device The main body (2) is located inside the support ring (7). The outer wall of the environmental monitoring device main body (2) is fixedly connected to a limiting ring (9) that abuts against the upper end face of the support ring (7). The upper end face of the limiting ring (9) is provided with through holes (10) that match multiple grooves (8). The lower end face of the protective plate (5) is rotatably connected to multiple pins (11) that pass through multiple through holes (10) and extend into multiple grooves (8). A locking mechanism is provided between the multiple pins (11) and the grooves (8).

2. The intelligent cable trench environmental monitoring device based on NB-IoT according to claim 1, characterized in that: The locking mechanism includes two first passage slots (12) that are symmetrically distributed on the inner wall of the groove (8). The lower end of the inner wall of the first passage slot (12) is provided with a slot (13). The lower end of the outer wall of the pin (11) is fixedly connected to two symmetrically distributed locking blocks (14) that are respectively matched with the two first passage slots (12) and the two slots (13).

3. The intelligent cable trench environmental monitoring device based on NB-IoT according to claim 1, characterized in that: The sealing mechanism includes multiple annular grooves (15) opened at the lower end of the mounting groove (4), and sealing gaskets (16) are fixedly connected to the lower end of each of the multiple annular grooves (15). The lower end face of the protective plate (5) is fixedly connected to annular cylinders (17) that match the multiple annular grooves (15).

4. The intelligent cable trench environmental monitoring device based on NB-IoT according to claim 1, characterized in that: The outer wall of the pin (11) is slidably connected to a pressing plate (18), and a spring (19) sleeved on the outer wall of the pin (11) is fixedly connected between the upper end face of the pressing plate (18) and the lower end face of the protective plate (5).

5. The intelligent cable trench environmental monitoring device based on NB-IoT according to claim 1, characterized in that: The upper surface of the protective plate (5) is provided with a plurality of evenly distributed storage slots (20), and a plurality of pins (11) extend into the interior of the plurality of storage slots (20) and are fixedly connected with torsion blocks (21).

6. The intelligent cable trench environmental monitoring device based on NB-IoT according to claim 2, characterized in that: The inner wall of the through hole (10) is provided with two second through slots (22) that respectively match the two locking blocks (14).

7. The intelligent cable trench environmental monitoring device based on NB-IoT according to claim 1, characterized in that: The protective plate (5) is configured to be transparent.

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